Study on the Mechanism of High-Efficiency Rock Breaking by Hydraulic Jet Based on Explicit Dynamics
Round 1
Reviewer 1 Report
This paper studied the mechanism of high-efficiency rock breaking by hydraulic jet based on explicit dynamics. In order to improve the manuscript, following problems should be revised and considered properly.
1. Since the Smoothed Particle Hydrodynamics (SPH) -FEM coupling algorithm is a gridless Lagrange algorithm, why the grids are divided in section 3.3.
2. In Eq.(1), there are no parameter and unit description. In Eq.(2), there are no units.
3. The dynamic analysis software LS-Dyna was used to simulate the rock-breaking process. How do you consider or realize different influence factors in the software?
4. The algorithm and calculation process of the mathematical model is from other software. What is the the novelty of the paper?
Author Response
请参阅附件。
Author Response File: 
Author Response.pdf
Reviewer 2 Report
it is an interesting piece of research and can be published but requires major revisions. Most of the figures need to be improved. specific:
figures 1 and 2 do not have a scale, it is not known what size it is
figure 3 is too simple, it could be anything, include scale, some parameter of the model
Does the model in figure 4 have some boundary conditions? what is the scale
Figure 5 is too simplistic, please improve
Figure 6 ,7, 9, 10 and 15 need more explanation inside the figure, where is the surface? which is the scale? indicate some depht boundaries.
Figure 17 is too simplistic
Figures 18, 19 and 20 need scale
Can the test be applied to any type of rock? In what type of rock has the test been simulated, please clarify
page 38: what do authors mean with "traditional mining methods"? any specific method or all of them. Please clarify.
line 183: Booundary conditions must also be indicated in the model, e.g figure 4 and 5. Please indicate if this applies or not and why
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
